<template>
  <div class="menu">
    <el-aside width="200px">
      <el-menu
        default-active="2"
        class="el-menu-vertical-demo"
        @open="handleOpen"
        @close="handleClose"
        background-color="#2578b5"
        text-color="#fff"
        active-text-color="#ffd04b"
      >
        <el-submenu index="1">
          <template slot="title">
            <i class="el-icon-location"></i>
            <span>导航一</span>
          </template>
          <el-menu-item-group>
            <template slot="title">分组一</template>
            <el-menu-item index="1-1">选项1</el-menu-item>
            <el-menu-item index="1-2">选项2</el-menu-item>
          </el-menu-item-group>
          <el-menu-item-group title="分组2">
            <el-menu-item index="1-3">选项3</el-menu-item>
          </el-menu-item-group>
          <el-submenu index="1-4">
            <template slot="title">选项4</template>
            <el-menu-item index="1-4-1">选项1</el-menu-item>
          </el-submenu>
        </el-submenu>
        <el-menu-item index="2">
          <i class="el-icon-menu"></i>
          <span slot="title">导航二</span>
        </el-menu-item>
        <el-menu-item index="3" disabled>
          <i class="el-icon-document"></i>
          <span slot="title">导航三</span>
        </el-menu-item>
        <el-menu-item index="4">
          <i class="el-icon-setting"></i>
          <span slot="title">导航四</span>
        </el-menu-item>
      </el-menu>
    </el-aside>
  </div>
</template>
<script>
export default {
  data() {
    return {};
  },
  methods: {
    methods: {
      handleOpen(key, keyPath) {
        console.log(key, keyPath);
      },
      handleClose(key, keyPath) {
        console.log(key, keyPath);
      },
    },
  },
};
</script>
<style lang="scss">
.menu {
    .el-aside {
        height: 100%;
        .el-menu {
            height: 100%;
        }
        .el-submenu .el-menu-item {
            min-width: 0;
        }
    }
}
</style>